d) As we work through the rest of this unit, keep checking the earth clock and comparing it to the screen shot you have taken.

The face of 7 Billion

Task 2:

a) Open the power point slide below.

b) Click on the image above and use the tabs on the right hand side of the page to learn more about the worlds population.

c) Using text boxes, add the information you find to the power point slide.

Extension:

Use the internet to find out when the population of India is expected to become greater than China's.

7 Billion: How did we get there?

Aims:
To be able to demonstrate an understanding of the scale of the the global population
To be able to discuss how the global population has changed over time and recall any periods of rapid change.
To know definitions of birth rate, death rate, natural increase and natural decrease.
To be able to calculate natural increase

Definitions:

Birth Rate:The number of births per 1000 of population per year.

Death Rate:The number of deaths per 1000 of population per year.

Natural increase: When birth rates are higher than death rates.

Natural decrease: Where death rates are higher than birth rates.

Task 3:

a) Open the word document below and save a copy to your computer. (My documents/Geography/Population ....)

3) Read the definitions below and then add them to your vocab list.

Fertility rate: The average number of children a female is expected to have in their lifetime.

Infant mortality: The number of deaths before the age of 1, per 1000 live births per year.

Life expectancy: The average age that someone is expected to live within a country. Generally women tend to live a few years longer than men.

Population Pyramids

4) Carefully read through the PowerPoint below and make notes in your book. The information you need to answer the following questions can be found in the PowerPoint so make sure you read it from start to finish.

5) Save a copy of the Swiss Population Pyramid document to your documents. Once you have done this open it and label the population pyramids of Switzerland with the terms, young dependents, elderlydependents and economically active.

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6) Add the definitions of young dependent, elderly dependent and economically active to your definitions sheet.

Definitions:

Population Pyramid: A population pyramid shows the age and sex structure of the country. It is a type of graph that is divided into males and females and then age groups.

Young Dependents: The number or the percentage of the population under the age of 16.

Old Dependents: The number or the percentage of the population over the age of 65.

Economically Active: People between the ages of 16 and 65. This is basically the working group.

Dependency Ratio: The ratio between the amount of dependents (old and young) and the economically active.

Why do we classify the elderly as, "Old Dependents?"

Note:

Obviously some people stay at school past the age of 16, some people retire before 65 and some people work after 65. Also some people between 16 and 65 might unemployed. However, when we are look at entire populations we have to look at averages (the norm).

Complete the population pyramids worksheet below using the information on the web page.

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8) Go back to the Power Point you worked on in question 4. Use your knowledge of population pyramids to label the population pyramids for Switzerland (2015 and 2050), India and Uganda. What do the pyramids tell us about the population structure of the three countries.

Boys at school in Uganda. How might Uganda's population growth change if more girls were to attend school?

Extension:

10) What problems do you think the governments of Switzerland, India and Uganda will face in 2050. Think about the relative sizes of the Young, Elderly and Economically Active Groups. Write a paragraph under the relevant slide in the PowerPoint you have made.

India will be the most populous country in the world by 2022. Why? What impact will this have on the country?

11) Click on the image above and make notes on the article. You could create an info graphic to illustrate the facts given.

12) Read the article below. Add extra rows to your definitions sheet and include definitions for Foeticide and Infanticide.

How many people could the earth's resources support? What is the 'carrying capacity of the earth?

Carrying capacity is not a fixed number.

If humans were still in the hunter-gatherer mode, Earth would have reached its capacity at about 100 million people.

If everyone on Earth lived like a middle-class American, consuming roughly 3.3 times the subsistence level of food and about 250 times the subsistence level of clean water, the Earth could only support about 2 billion people.

If everyone on the planet consumed only what he or she needed, 40 billion would be a feasible number.